CN104745106A - Adhesion method for inner-layer glass of DLP screen - Google Patents
Adhesion method for inner-layer glass of DLP screen Download PDFInfo
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- CN104745106A CN104745106A CN201510106769.6A CN201510106769A CN104745106A CN 104745106 A CN104745106 A CN 104745106A CN 201510106769 A CN201510106769 A CN 201510106769A CN 104745106 A CN104745106 A CN 104745106A
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- layer glass
- inner layer
- screen frame
- hot melt
- melt adhesive
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Abstract
The invention discloses an adhesion method for inner-layer glass of a DLP screen. According to the method, firstly, a UV adhesive, which has high light transmittance and is easy to wash with alcohol, is adopted as a primary positioning adhesive to block a gap between the bottom surface of the inner-layer glass and the upper end surface of a screen frame, so that the problem that a hot melt adhesive permeates into the screen frame is effectively solved, and the phenomenon that a non-transparent hot melt adhesive permeates into the screen frame to cause an optical black seam during follow-up hot melt adhesive application is prevented; and then a 3M hot melt adhesive is adopted as a main adhesive, and the 3M hot melt adhesive has high adhesion strength and realizes reliable adhesion and zero optical black seam between the screen frame and the inner-layer glass. According to the method, the adhesion of the inner-layer glass of the DLP screen is finished so long as the 3M hot melt adhesive injected into four long grooves is cured initially, the DLP screen can be carried arbitrarily without an adhesive failure before the 3M hot melt adhesive is cured completely (over 24 hours), the shock resistance is good, the curing of the hot melt adhesive cannot be affected, the defect of long curing time of the existing glass adhesive is overcome, and the production and manufacturing efficiency of finished screens is greatly improved.
Description
Technical field
The present invention relates to DLP rear-projection mosaic screen and make field, be specifically related to a kind of adhering method of inner layer glass of DLP screen.
Background technology
The screen of DLP rear-projection mosaic screen forms primarily of screen frame, inner layer glass, Fresnel Lenses and imaging screen, screen frame is screen supporting body, generally be made up of aluminium section bar, inner layer glass is for guaranteeing the surfacing of Fresnel Lenses, Fresnel Lenses is used for optically focused, imaging screen is used for imaging, and above-mentioned each parts, with after different technique for sticking assemblies, make finished product screen.Screen frame is identical with inner layer glass size, being adhesively fixed of screen frame and inner layer glass is a wherein important procedure, requirement bonding strength is high, the total thickness being bonded in glue-line on inner layer glass four limit and the bonding auxiliary bed of material gets over Bao Yuehao, even if but total thickness is thin again, the black seam of optics and material black surround also can be produced.Current screen frame and being adhesively fixed of inner layer glass mainly adopt two kinds of adhesive technologys:
One, first with glass cement, lens PC sheet is adhered to inner layer glass four limit, then with double sticky tape, PC sheet and screen frame is bonded together.The shortcoming of this technology is: because glass glue-line only has 0.2-0.3mm thick, bonding strength is obviously inadequate, the every limit of inner layer glass produces the black seam of optics (the thick 0.175mm+ bondline thickness of PC sheet) of more than 0.375mm, in addition due to glass cement set time long (about 24 hours), can not move in the curing process, therefore, during this adhesive technology operational cost, efficiency is low, is unfavorable for scale operation.
Two, with conventional UV glue (such as, model is the 3M UV tackiness agent of LC1113), the upper surface of inner layer glass and screen frame is bonded together.The shortcoming of this technology is: the width of screen frame upper surface generally only has about 1mm, bond area is less, although the bonding strength of UV glue is higher than glass cement, UV is gluing, and to connect rear glue-line more crisp, if shake excessive during the transport of finished product screen, this adhesive layer is more cracked to come unstuck.
Summary of the invention
Technical problem to be solved by this invention is, for the deficiencies in the prior art, provides a kind of adhering method of inner layer glass of DLP screen, manufacture efficiency high, make between screen frame with inner layer glass bonding reliably, shock resistance is good, bonding strength is high, effectively can avoid the generation of the black seam of optics.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of adhering method of inner layer glass of DLP screen, comprises the following steps:
1) make the upper end of screen frame bend inwards 35-55 °, height of formation is the kink of 0.3-0.7mm;
2) a circle Primary Location caking agent is stamped on the surface of the upper surface of described screen frame, again inner layer glass is lain in the upper end of described screen frame, after described Primary Location caking agent solidification, unnecessary cull is removed with alcohol washes, described Primary Location caking agent is made only to be filled in the gap between the bottom surface of described inner layer glass and the upper surface of described screen frame, thus an annular recesses is formed between the bottom surface of described inner layer glass and the outside surface of described kink, this annular recesses is made up of four elongated slots, described Primary Location caking agent is the model that Guangzhou Ai Lite company produces is the UV glue of T3422B,
3) primary bond agent is squeezed in four described elongated slots, described primary bond agent is the model that Minnesota Mining and Manufacturing Company produces is the 3M hot melt adhesive of TS115HGS, then strike off with four limits of technological tool along described inner layer glass, remove unnecessary cull, namely complete the bonding of the inner layer glass of DLP screen.
The present invention adopts UV glue and these two kinds of glue of 3M hot melt adhesive to realize being adhesively fixed of screen frame and inner layer glass, and UV glue is as Primary Location caking agent, and 3M hot melt adhesive is as primary bond agent.The UV glue that the present invention is used and 3M hot melt adhesive have different qualities, respectively have advantage, and UV is gluing connects that set time is short, bonding strength general, and compares UV glue, and 3M hot melt adhesive bonding set time is long, bonding strength is high.The present invention, in conjunction with the advantage of these two kinds of glue, reaches best adhesive effect.
In the inventive method, 3M hot melt adhesive is squeezed into after in four elongated slots, namely the bonding of the inner layer glass of DLP screen is completed through primary solidification, namely can at once carrying and can not coming unstuck arbitrarily without the need to solidifying (complete set time is more than 24 hours) completely, shock resistance is good, can not affect the solidification of hot melt adhesive, eliminate the drawback of existing glass cement length set time, that significantly improves finished product screen manufactures efficiency.
Bonding between screen frame and inner layer glass, requires there is the opaque cull affecting optical effect in screen frame.Adhering method of the present invention is first bonding by UV glue Primary Location, blocks the gap between the bottom surface of inner layer glass and the upper surface of screen frame.Because the applying glue of 3M thermosol gelgun utilizes high pressure gas plastic emitting usually, 3M hot melt adhesive has certain pressure, once 3M hot melt adhesive infiltrates screen frame easily cause the black seam of optics, adhering method of the present invention blocks the gap between the bottom surface of inner layer glass and the upper surface of screen frame in advance by UV glue, when can prevent the applying glue of subsequent thermal melten gel, opaque hot melt adhesive to infiltrate in screen frame and solidification and be difficult to remove, simultaneously, the light transmission of the present invention UV used glue is better, transmittance can reach more than 95%, and UV glue cull alcohol is also easy to cleaning removal.Therefore, adhering method of the present invention effectively can solve the problem that hot melt adhesive infiltrates screen frame, hot melt adhesive is only stayed in elongated slot bonding with inner layer glass, and make between screen frame and inner layer glass, not affect the unnecessary glue-line exceeding inner layer glass outside dimension scope of optic splice seam and material splicing seams and gluing subsidiary, do not exceed inner layer glass four limit, the splicing of finished product screen can not be affected, can not be had an impact the material piece of optical effect, realize the black seam of zero optics that screen frame is bonding with inner layer glass, the comparatively high-adhesive-strength between screen frame and inner layer glass can be guaranteed simultaneously.
Step 1) in, the angle that the upper end of described screen frame bends inwards is 40-50 °, and the height of described kink is 0.4-0.6mm, can guarantee the bonding strength between screen frame and inner layer glass, facilitates the applying glue of hot melt adhesive to operate simultaneously.
Step 2) in, described Primary Location caking agent adopts the solidification of UV light irradiation.
Described inner layer glass is of a size of 50-80 inch, and thickness is 3-4mm.
Compared with prior art, the invention has the advantages that: the adhering method of the inner layer glass of DLP screen disclosed by the invention, UV glue and these two kinds of glue of 3M hot melt adhesive are adopted to realize being adhesively fixed of screen frame and inner layer glass, light transmission better and the UV glue being easy to alcohol washes as Primary Location caking agent to block the gap between the bottom surface of inner layer glass and the upper surface of screen frame, effective solution hot melt adhesive infiltrates the problem of screen frame, when preventing the applying glue of subsequent thermal melten gel, opaque hot melt adhesive infiltrates in screen frame and causes the black seam of optics, the follow-up 3M hot melt adhesive that adopts again is as primary bond agent, bonding strength is high, realize the reliably bonding and black seam of zero optics between screen frame with inner layer glass.In the inventive method, 3M hot melt adhesive is squeezed into after in four elongated slots, namely the bonding of the inner layer glass of DLP screen is completed through primary solidification, namely can at once carrying and can not coming unstuck arbitrarily without the need to solidifying (complete set time is more than 24 hours) completely, shock resistance is good, can not affect the solidification of hot melt adhesive, eliminate the drawback of existing glass cement length set time, that significantly improves finished product screen manufactures efficiency.The inventive method applied range, can be applicable to various size are 50-80 inch, thickness is 3-4mm the inner layer glass of DLP screen and the bonding of screen frame.
Accompanying drawing explanation
Fig. 1 is the outside drawing of the screen frame that in embodiment, upper end bends inwards;
Fig. 2 is A place enlarged view in Fig. 1;
Fig. 3 is screen frame rear design sketch bonding with inner layer glass in embodiment;
Fig. 4 is B place enlarged view in Fig. 3.
Embodiment
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
The adhering method of the inner layer glass of the DLP screen of embodiment, comprises the following steps:
1) make the upper end of aluminium alloy screen frame 1 bend inwards 45 °, height of formation is the kink 11 of 0.5mm, and the outside drawing of this screen frame 1 is shown in Fig. 1;
2) the wide Primary Location caking agent of a circle 1.1mm is stamped on the surface of the upper surface of screen frame 1, 67 inches will be of a size of again, thickness is the upper end that the inner layer glass 2 of 4mm lies in screen frame 1, after Primary Location caking agent adopts the solidification of UV light irradiation, unnecessary cull is removed with alcohol washes, in the gap that Primary Location caking agent is only filled between the bottom surface of inner layer glass 2 and the upper surface of screen frame 1, thus an annular recesses is formed between the bottom surface of inner layer glass 2 and the outside surface of kink 11, this annular recesses is made up of four elongated slots 3, Primary Location caking agent is the model that Guangzhou Ai Lite company produces is the UV glue of T3422B,
3) primary bond agent is squeezed in four elongated slots 3, primary bond agent is the model that Minnesota Mining and Manufacturing Company produces is the 3M hot melt adhesive of TS115HGS, then strike off with four limits of technological tool along inner layer glass 2, remove unnecessary cull, namely complete the bonding of the inner layer glass of DLP screen, its bonding rear design sketch is shown in Fig. 3.
Bonding strength is carried out for the above-mentioned inner layer glass be adhesively fixed with screen frame test and simulate vibratory test, investigate its bonding strength and adhesive effect, as a comparison, the gluing inner layer glass adding the bonding same size size of PC sheet with existing glass cement that connects of existing conventional UV is adopted also to carry out same test.
Bonding strength test method: will three bonding 67 inch screen frames of three kinds of different bonding methods be passed through, inner layer glass 2 down, fix by the threaded hole 12 on screen frame 1 and evenly sling, weight is placed gradually in the middle of inner layer glass 2, when the weight glue-line be increased between inner layer glass 2 and screen frame 1 comes unstuck, record the weight weight of now placing, be the maximum capacity amount of glue-line, test-results is as following table 1.As seen from Table 1, the bonding strength of the glue-line between the inner layer glass bonding through the inventive method and screen frame is more than 2 times of existing adhering method, bonding firm, effective.
Table 1
| Subjects | Maximum capacity amount (KG) | Degumming phenomenon |
| Adhering method of the present invention | 50 | Come unstuck in an angle |
| It is conventional that UV is gluing connects | 23 | Whole glass is taken off simultaneously |
| It is bonding that glass cement adds PC sheet | 20 | One long limit, a minor face is directly thrown off |
Simulate vibratory test method: for passing through 67 bonding inch screen frames of three kinds of different bonding methods, each preparation 4, four screen frames are individually packed, be placed on the firm rich fruit in Shanghai test instrument plant produce YSMNT-100 type simulated transport bumper on vibrations 8 hours after, observe bonding situation, test-results is as following table 2.As seen from Table 2, the shock resistance of the glue-line between the inner layer glass bonding through the inventive method and screen frame is good, can not come unstuck after long-time vibrations.
Table 2
In above embodiment, Primary Location caking agent is the model that Guangzhou Ai Lite company produces is the UV glue of T3422B, and its viscosity is 150-300CPS, shearing resistance≤16MPa, first set time is 10s, and temperature resistant range is-40-150 DEG C, transparency is 99%, and Shore hardness is 65D; Primary bond agent is the model that Minnesota Mining and Manufacturing Company produces is the 3M hot melt adhesive of TS115HGS, it is a kind of white/near-white solid, its use temperature is 121 DEG C, and the viscosity of 121 DEG C is 16000CPS, and the dwell time is 10 minutes, the applying glue time is 1 minute, molten state density is 9.0lbs/gallon, and Shore hardness is 47D, and modulus is 3300Psi, ultimate tensile strength is 3200Psi, and elongation at break is 600%.
Claims (4)
1. an adhering method for the inner layer glass of DLP screen, is characterized in that, comprises the following steps:
1) make the upper end of screen frame bend inwards 35-55 °, height of formation is the kink of 0.3-0.7mm;
2) a circle Primary Location caking agent is stamped on the surface of the upper surface of described screen frame, again inner layer glass is lain in the upper end of described screen frame, after described Primary Location caking agent solidification, unnecessary cull is removed with alcohol washes, described Primary Location caking agent is made only to be filled in the gap between the bottom surface of described inner layer glass and the upper surface of described screen frame, thus an annular recesses is formed between the bottom surface of described inner layer glass and the outside surface of described kink, this annular recesses is made up of four elongated slots, described Primary Location caking agent is the model that Guangzhou Ai Lite company produces is the UV glue of T3422B,
3) primary bond agent is squeezed in four described elongated slots, described primary bond agent is the model that Minnesota Mining and Manufacturing Company produces is the 3M hot melt adhesive of TS115 HGS, then strike off with four limits of technological tool along described inner layer glass, remove unnecessary cull, namely complete the bonding of the inner layer glass of DLP screen.
2. the adhering method of the inner layer glass of a kind of DLP screen according to claim 1, is characterized in that in step 1), and the angle that the upper end of described screen frame bends inwards is 40-50 °, and the height of described kink is 0.4-0.6mm.
3. the adhering method of the inner layer glass of a kind of DLP screen according to claim 1 and 2, is characterized in that step 2) in, described Primary Location caking agent adopts the solidification of UV light irradiation.
4. the adhering method of the inner layer glass of a kind of DLP screen according to claim 1 and 2, is characterized in that described inner layer glass is of a size of 50-80 inch, and thickness is 3-4mm.
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| CN201510106769.6A CN104745106B (en) | 2015-03-12 | 2015-03-12 | A kind of adhering method of the inner layer glass of DLP screen |
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| CN201510106769.6A CN104745106B (en) | 2015-03-12 | 2015-03-12 | A kind of adhering method of the inner layer glass of DLP screen |
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| CN104745106B CN104745106B (en) | 2016-09-07 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0955530A (en) * | 1995-08-14 | 1997-02-25 | Sunstar Eng Inc | Solar battery module and its manufacture |
| CN1992848A (en) * | 2005-12-31 | 2007-07-04 | 深圳创维－Rgb电子有限公司 | Novel composite screen of DLP large screen television wall and producing method thereof |
| KR100973350B1 (en) * | 2009-07-16 | 2010-07-30 | 주식회사 피제이엘씨디 | Manufacturing method for electronic equipment using hot melt tape and bonding apparatus for the same |
| CN101876783A (en) * | 2009-04-28 | 2010-11-03 | 上海幻影显示技术有限公司 | Method for manufacturing large glass-free digital light processor (DLP) digital screen |
| CN201867582U (en) * | 2010-11-11 | 2011-06-15 | 北京环宇蓝博科技有限公司 | Digital light processing (DLP) screen capable of reducing optical split seams |
| CN104238254A (en) * | 2013-06-20 | 2014-12-24 | 北京丰信达科技有限公司 | Display screen manufacturing method |
-
2015
- 2015-03-12 CN CN201510106769.6A patent/CN104745106B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0955530A (en) * | 1995-08-14 | 1997-02-25 | Sunstar Eng Inc | Solar battery module and its manufacture |
| CN1992848A (en) * | 2005-12-31 | 2007-07-04 | 深圳创维－Rgb电子有限公司 | Novel composite screen of DLP large screen television wall and producing method thereof |
| CN101876783A (en) * | 2009-04-28 | 2010-11-03 | 上海幻影显示技术有限公司 | Method for manufacturing large glass-free digital light processor (DLP) digital screen |
| KR100973350B1 (en) * | 2009-07-16 | 2010-07-30 | 주식회사 피제이엘씨디 | Manufacturing method for electronic equipment using hot melt tape and bonding apparatus for the same |
| CN201867582U (en) * | 2010-11-11 | 2011-06-15 | 北京环宇蓝博科技有限公司 | Digital light processing (DLP) screen capable of reducing optical split seams |
| CN104238254A (en) * | 2013-06-20 | 2014-12-24 | 北京丰信达科技有限公司 | Display screen manufacturing method |
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| CN104745106B (en) | 2016-09-07 |
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